<div dir="ltr"><div dir="ltr"><div dir="ltr">I have been running my optimization calculation on my WN slab for 6 hours. From iteration 1 to iteration 500 my energy value has been changing to the 10^-2 or less. Do you think my energy value is going to converge but needs more time or is there a problem (and if so, how can I fix it)? This is the output file I got:<div><br></div><div><div>Message from routine get_command_line:</div><div>   unexpected argument # 2   :-i</div><div><br></div><div>   Program PWSCF v.6.1 (svn rev. 13369) starts on 30Jun2020 at  1:30:19 </div><div><br></div><div>   This program is part of the open-source Quantum ESPRESSO suite</div><div>   for quantum simulation of materials; please cite</div><div>     "P. Giannozzi et al., J. Phys.:Condens. Matter 21 395502 (2009);</div><div>     URL <a href="http://www.quantum-espresso.org/" target="_blank">http://www.quantum-espresso.org</a>", </div><div>   in publications or presentations arising from this work. More details at</div><div>   <a href="http://www.quantum-espresso.org/quote" target="_blank">http://www.quantum-espresso.org/quote</a></div><div><br></div><div>   Parallel version (MPI), running on  192 processors</div><div>   R & G space division:  proc/nbgrp/npool/nimage =   192</div><div>   Waiting for input...</div><div>   Reading input from standard input</div><div>Warning: card &CELL ignored</div><div>Warning: card / ignored</div><div><br></div><div>   Current dimensions of program PWSCF are:</div><div>   Max number of different atomic species (ntypx) = 10</div><div>   Max number of k-points (npk) =  40000</div><div>   Max angular momentum in pseudopotentials (lmaxx) =  3</div><div>        file N.pbe-n-kjpaw_psl.1.0.0.UPF: wavefunction(s)  2S renormalized</div><div>        file W.pbe-spn-kjpaw_psl.1.0.0.UPF: wavefunction(s)  6S 5P 5D renormalized</div><div><br></div><div>   Subspace diagonalization in iterative solution of the eigenvalue problem:</div><div>   one sub-group per band group will be used</div><div>   scalapack distributed-memory algorithm (size of sub-group:  9*  9 procs)</div><div><br></div><div>   Found symmetry operation: I + ( -0.5000  0.0000  0.0000)</div><div>   This is a supercell, fractional translations are disabled</div><div> </div><div>   Parallelization info</div><div>   --------------------</div><div>   sticks:  dense  smooth   PW   G-vecs:   dense  smooth    PW</div><div>   Min      52    22    5         11415   3150   417</div><div>   Max      53    23    6         11445   3168   449</div><div>   Sum    10093   4291  1151        2194297  606291  84835</div><div> </div><div><br></div><div><br></div><div>   bravais-lattice index   =      14</div><div>   lattice parameter (alat)  =    15.7361  a.u.</div><div>   unit-cell volume      =  12543.4129 (a.u.)^3</div><div>   number of atoms/cell    =      48</div><div>   number of atomic types   =       2</div><div>   number of electrons    =    456.00</div><div>   number of Kohn-Sham states=      490</div><div>   kinetic-energy cutoff   =    50.3902  Ry</div><div>   charge density cutoff   =   475.2210  Ry</div><div>   convergence threshold   =    1.0E-06</div><div>   mixing beta        =    0.1581</div><div>   number of iterations used =       8  local-TF  mixing</div><div>   Exchange-correlation    =  SLA  PW  PBX  PBC ( 1  4  3  4 0 0)</div><div>   nstep           =      200</div><div><br></div><div><br></div><div>   celldm(1)=  15.736052  celldm(2)=  1.079226  celldm(3)=  3.035453</div><div>   celldm(4)=  -0.185547  celldm(5)=  0.000000  celldm(6)=  0.000000</div><div><br></div><div>   crystal axes: (cart. coord. in units of alat)</div><div>        a(1) = (  1.000000  0.000000  0.000000 )  </div><div>        a(2) = (  0.000000  1.079226  0.000000 )  </div><div>        a(3) = (  0.000000  -0.563219  2.982743 )  </div><div><br></div><div>   reciprocal axes: (cart. coord. in units 2 pi/alat)</div><div>        b(1) = (  1.000000 -0.000000 -0.000000 )  </div><div>        b(2) = (  0.000000  0.926590  0.174964 )  </div><div>        b(3) = (  0.000000  0.000000  0.335262 )  </div><div><br></div><div><br></div><div>   PseudoPot. # 1 for  N read from file:</div><div>   /home/coralee/projects/def-jkopysci/coralee/.pseudopot/N.pbe-n-kjpaw_psl.1.0.0.UPF</div><div>   MD5 check sum: e0e4e94a9c4025c5b51bd7d8793849bd</div><div>   Pseudo is Projector augmented-wave + core cor, Zval =  5.0</div><div>   Generated using "atomic" code by A. Dal Corso  v.5.1.2</div><div>   Shape of augmentation charge: PSQ</div><div>   Using radial grid of 1085 points,  4 beta functions with: </div><div>        l(1) =  0</div><div>        l(2) =  0</div><div>        l(3) =  1</div><div>        l(4) =  1</div><div>   Q(r) pseudized with 0 coefficients </div><div><br></div><div><br></div><div>   PseudoPot. # 2 for  W read from file:</div><div>   /home/coralee/projects/def-jkopysci/coralee/.pseudopot/W.pbe-spn-kjpaw_psl.1.0.0.UPF</div><div>   MD5 check sum: f3acacb803c85a3663896168a67a7ce2</div><div>   Pseudo is Projector augmented-wave + core cor, Zval = 14.0</div><div>   Generated using "atomic" code by A. Dal Corso  v.5.1.2</div><div>   Shape of augmentation charge: PSQ</div><div>   Using radial grid of 1273 points,  6 beta functions with: </div><div>        l(1) =  0</div><div>        l(2) =  0</div><div>        l(3) =  1</div><div>        l(4) =  1</div><div>        l(5) =  2</div><div>        l(6) =  2</div><div>   Q(r) pseudized with 0 coefficients </div><div><br></div><div><br></div><div>   atomic species  valence   mass   pseudopotential</div><div>    N        5.00   14.00674    N( 1.00)</div><div>    W       14.00  183.84000    W( 1.00)</div><div><br></div><div>   Starting magnetic structure </div><div>   atomic species  magnetization</div><div>    N       0.200</div><div>    W       0.200</div><div><br></div><div>   No symmetry found</div><div><br></div><div><br></div><div><br></div><div>  Cartesian axes</div><div><br></div><div>   site n.   atom          positions (alat units)</div><div>     1      N  tau(  1) = (  0.3852312  0.3209930  1.7818541  )</div><div>     2      N  tau(  2) = (  0.8852312  0.3209930  1.7818541  )</div><div>     3      N  tau(  3) = (  0.3852312  -0.2186200  1.7818541  )</div><div>     4      N  tau(  4) = (  0.8852312  -0.2186200  1.7818541  )</div><div>     5      W  tau(  5) = (  0.3852312  0.5863722  1.7711498  )</div><div>     6      W  tau(  6) = (  0.8852312  0.5863722  1.7711498  )</div><div>     7      W  tau(  7) = (  0.3852312  0.0467592  1.7711498  )</div><div>     8      W  tau(  8) = (  0.8852312  0.0467592  1.7711498  )</div><div>     9      N  tau(  9) = (  0.1352313  0.6443508  1.7374686  )</div><div>    10      N  tau(  10) = (  0.6352312  0.6443508  1.7374686  )</div><div>    11      N  tau(  11) = (  0.1352313  0.1047377  1.7374686  )</div><div>    12      N  tau(  12) = (  0.6352312  0.1047377  1.7374686  )</div><div>    13      W  tau(  13) = (  0.1352313  0.3648474  1.7311320  )</div><div>    14      W  tau(  14) = (  0.6352312  0.3648474  1.7311320  )</div><div>    15      W  tau(  15) = (  0.1352313  -0.1747656  1.7311320  )</div><div>    16      W  tau(  16) = (  0.6352312  -0.1747656  1.7311320  )</div><div>    17      N  tau(  17) = (  0.3852312  0.6408628  1.5167330  )</div><div>    18      N  tau(  18) = (  0.8852312  0.6408628  1.5167330  )</div><div>    19      N  tau(  19) = (  0.3852312  0.1012498  1.5167330  )</div><div>    20      N  tau(  20) = (  0.8852312  0.1012498  1.5167330  )</div><div>    21      W  tau(  21) = (  0.3852312  0.3666288  1.5060287  )</div><div>    22      W  tau(  22) = (  0.8852312  0.3666288  1.5060287  )</div><div>    23      W  tau(  23) = (  0.3852312  -0.1729842  1.5060287  )</div><div>    24      W  tau(  24) = (  0.8852312  -0.1729842  1.5060287  )</div><div>    25      N  tau(  25) = (  0.1352313  0.4246075  1.4723475  )</div><div>    26      N  tau(  26) = (  0.6352312  0.4246075  1.4723475  )</div><div>    27      N  tau(  27) = (  0.1352313  -0.1150055  1.4723475  )</div><div>    28      N  tau(  28) = (  0.6352312  -0.1150055  1.4723475  )</div><div>    29      W  tau(  29) = (  0.1352313  0.6847172  1.4660107  )</div><div>    30      W  tau(  30) = (  0.6352312  0.6847172  1.4660107  )</div><div>    31      W  tau(  31) = (  0.1352313  0.1451041  1.4660107  )</div><div>    32      W  tau(  32) = (  0.6352312  0.1451041  1.4660107  )</div><div>    33      N  tau(  33) = (  0.3852312  0.4211194  1.2516118  )</div><div>    34      N  tau(  34) = (  0.8852312  0.4211194  1.2516118  )</div><div>    35      N  tau(  35) = (  0.3852312  -0.1184936  1.2516118  )</div><div>    36      N  tau(  36) = (  0.8852312  -0.1184936  1.2516118  )</div><div>    37      W  tau(  37) = (  0.3852312  0.6864986  1.2409076  )</div><div>    38      W  tau(  38) = (  0.8852312  0.6864986  1.2409076  )</div><div>    39      W  tau(  39) = (  0.3852312  0.1468856  1.2409076  )</div><div>    40      W  tau(  40) = (  0.8852312  0.1468856  1.2409076  )</div><div>    41      N  tau(  41) = (  0.1352313  0.7444773  1.2072262  )</div><div>    42      N  tau(  42) = (  0.6352312  0.7444773  1.2072262  )</div><div>    43      N  tau(  43) = (  0.1352313  0.2048643  1.2072262  )</div><div>    44      N  tau(  44) = (  0.6352312  0.2048643  1.2072262  )</div><div>    45      W  tau(  45) = (  0.1352313  0.4649739  1.2008896  )</div><div>    46      W  tau(  46) = (  0.6352312  0.4649739  1.2008896  )</div><div>    47      W  tau(  47) = (  0.1352313  -0.0746391  1.2008896  )</div><div>    48      W  tau(  48) = (  0.6352312  -0.0746391  1.2008896  )</div><div><br></div><div>   number of k points=   4  gaussian smearing, width (Ry)=  0.0200</div><div>            cart. coord. in units 2pi/alat</div><div>    k(   1) = (  0.0000000  0.0000000  0.0000000), wk =  0.2500000</div><div>    k(   2) = (  0.0000000  -0.4632949  -0.0874821), wk =  0.2500000</div><div>    k(   3) = (  -0.5000000  0.0000000  0.0000000), wk =  0.2500000</div><div>    k(   4) = (  -0.5000000  -0.4632949  -0.0874821), wk =  0.2500000</div><div><br></div><div>   Dense  grid:  2194297 G-vectors   FFT dimensions: ( 120, 120, 360)</div><div><br></div><div>   Smooth grid:  606291 G-vectors   FFT dimensions: (  72,  80, 216)</div><div><br></div><div>   Estimated max dynamical RAM per process >    75.34MB</div><div><br></div><div>   Estimated total allocated dynamical RAM >  14464.36MB</div><div>   Generating pointlists ...</div><div>   new r_m :  0.1068 (alat units)  1.6801 (a.u.) for type   1</div><div>   new r_m :  0.1068 (alat units)  1.6801 (a.u.) for type   2</div><div><br></div><div>   Initial potential from superposition of free atoms</div><div>   Check: negative starting charge=(component1):  -0.001367</div><div>   Check: negative starting charge=(component2):  -0.000912</div><div><br></div><div>   starting charge  455.98646, renormalised to  456.00000</div><div><br></div><div>   negative rho (up, down):  1.367E-03 9.115E-04</div><div>   Starting wfc are  408 randomized atomic wfcs +  82 random wfc</div><div>   Checking if some PAW data can be deallocated... </div><div><br></div><div>   total cpu time spent up to now is    11.8 secs</div><div><br></div><div>   per-process dynamical memory:  111.1 Mb</div><div><br></div><div>   Self-consistent Calculation</div><div><br></div><div>   iteration #  1   ecut=   50.39 Ry   beta=0.16</div><div>   Davidson diagonalization with overlap</div><div>   ethr =  1.00E-02,  avg # of iterations =  6.4</div><div><br></div><div>   negative rho (up, down):  1.815E-04 7.397E-05</div><div><br></div><div>   total cpu time spent up to now is    91.7 secs</div><div><br></div><div>   total energy        =  <span style="background-color:rgb(255,255,0)">-18922.62699425 Ry</span></div><div>   Harris-Foulkes estimate  =  -18923.50326373 Ry</div><div>   estimated scf accuracy   <    18.35022984 Ry</div><div><br></div><div>   total magnetization    =   17.52 Bohr mag/cell</div><div>   absolute magnetization   =   21.04 Bohr mag/cell</div><div><br></div><div>   iteration #  2   ecut=   50.39 Ry   beta=0.16</div><div>   Davidson diagonalization with overlap</div><div>   ethr =  4.02E-03,  avg # of iterations =  1.0</div><div><br></div><div>   negative rho (up, down):  2.600E-01 2.782E-01</div><div><br></div><div>   total cpu time spent up to now is    124.8 secs</div><div><br></div><div>   total energy        =  <span style="background-color:rgb(255,255,0)">-18920.61522629 Ry</span></div><div>   Harris-Foulkes estimate  =  -18922.77912017 Ry</div><div>   estimated scf accuracy   <    11.59887509 Ry</div><div><br></div><div>   total magnetization    =   16.77 Bohr mag/cell</div><div>   absolute magnetization   =   20.11 Bohr mag/cell</div><div><br></div><div>   iteration #  3   ecut=   50.39 Ry   beta=0.16</div><div>   Davidson diagonalization with overlap</div><div>   ethr =  2.54E-03,  avg # of iterations =  1.4</div><div><br></div><div>   negative rho (up, down):  1.835E-01 2.099E-01</div><div><br></div><div>   total cpu time spent up to now is    157.9 secs</div><div><br></div><div>   total energy        =  -18922.16475654 Ry</div><div>   Harris-Foulkes estimate  =  -18922.19366580 Ry</div><div>   estimated scf accuracy   <    1.17725139 Ry</div><div><br></div><div>   total magnetization    =   12.59 Bohr mag/cell</div><div>   absolute magnetization   =   13.91 Bohr mag/cell</div></div><div><br></div><div>.....</div><div><br></div><div><div style="font-family:arial,sans-serif;color:rgb(0,0,0)"><div>iteration #519   ecut=   50.39 Ry   beta=0.16</div><div>   Davidson diagonalization with overlap</div><div>   ethr =  8.38E-10,  avg # of iterations =  2.0</div><div><br></div><div>   negative rho (up, down):  4.807E-02 8.736E-02</div><div><br></div><div>   total cpu time spent up to now is   25760.8 secs</div><div><br></div><div>   total energy        =  -18922.33525065 Ry</div><div>   Harris-Foulkes estimate  =  -18922.33934098 Ry</div><div>   estimated scf accuracy   <    0.00032491 Ry</div><div><br></div><div>   total magnetization    =   2.80 Bohr mag/cell</div><div>   absolute magnetization   =   5.59 Bohr mag/cell</div><div><br></div><div>   iteration #520   ecut=   50.39 Ry   beta=0.16</div><div>   Davidson diagonalization with overlap</div><div>   ethr =  8.38E-10,  avg # of iterations =  5.0</div><div><br></div><div>   negative rho (up, down):  4.734E-02 8.750E-02</div><div><br></div><div>   total cpu time spent up to now is   25836.4 secs</div><div><br></div><div>   total energy        =  -18922.33845071 Ry</div><div>   Harris-Foulkes estimate  =  -18922.33845795 Ry</div><div>   estimated scf accuracy   <    0.00029607 Ry</div><div><br></div><div>   total magnetization    =   3.49 Bohr mag/cell</div><div>   absolute magnetization   =   5.60 Bohr mag/cell</div><div><br></div><div>   iteration #521   ecut=   50.39 Ry   beta=0.16</div><div>   Davidson diagonalization with overlap</div><div>   ethr =  8.38E-10,  avg # of iterations =  3.0</div><div><br></div><div>   negative rho (up, down):  4.659E-02 8.729E-02</div><div><br></div><div>   total cpu time spent up to now is   25883.8 secs</div><div><br></div><div>   total energy        =  <span style="background-color:rgb(255,255,0)">-18922.33852878 Ry</span></div><div>   Harris-Foulkes estimate  =  -18922.33847917 Ry</div><div>   estimated scf accuracy   <    0.00032948 Ry</div><div><br></div><div>   total magnetization    =   3.55 Bohr mag/cell</div><div>   absolute magnetization   =   5.62 Bohr mag/cell</div><div><br></div><div>   iteration #522   ecut=   50.39 Ry   beta=0.16</div><div>   Davidson diagonalization with overlap</div><div>   ethr =  8.38E-10,  avg # of iterations =  2.5</div><div><br></div><div>   negative rho (up, down):  4.530E-02 8.190E-02</div><div><br></div><div>   total cpu time spent up to now is   25922.4 secs</div><div><br></div><div>   total energy        =  <span style="background-color:rgb(255,255,0)">-18922.33802807 Ry</span></div><div>   Harris-Foulkes estimate  =  -18922.33853778 Ry</div><div>   estimated scf accuracy   <    0.00039280 Ry</div><div><br></div><div>   total magnetization    =   3.58 Bohr mag/cell</div><div>   absolute magnetization   =   5.64 Bohr mag/cell</div><div><br></div><div>   iteration #523   ecut=   50.39 Ry   beta=0.16</div><div>   Davidson diagonalization with overlap</div><div>   ethr =  8.38E-10,  avg # of iterations =  4.6</div><div><br></div><div>   negative rho (up, down):  4.528E-02 8.146E-02</div><div><br></div><div>   total cpu time spent up to now is   25982.9 secs</div><div><br></div><div>   total energy        =  <span style="background-color:rgb(255,255,0)">-18922.33916064 Ry</span></div><div>   Harris-Foulkes estimate  =  -18922.33912989 Ry</div><div>   estimated scf accuracy   <    0.00026667 Ry</div><div><br></div><div>   total magnetization    =   3.19 Bohr mag/cell</div><div>   absolute magnetization   =   5.58 Bohr mag/cell</div><div><br></div><div>   iteration #524   ecut=   50.39 Ry   beta=0.16</div><div>   Davidson diagonalization with overlap</div><div>   ethr =  8.38E-10,  avg # of iterations =  2.1</div><div><br></div><div>   negative rho (up, down):  4.556E-02 8.074E-02</div><div><br></div><div>   total cpu time spent up to now is   26025.7 secs</div><div><br></div><div>   total energy        =  <span style="background-color:rgb(255,255,0)">-18922.33919903 Ry</span></div><div>   Harris-Foulkes estimate  =  -18922.33916652 Ry</div><div>   estimated scf accuracy   <    0.00025649 Ry</div><div><br></div><div>   total magnetization    =   3.16 Bohr mag/cell</div><div>   absolute magnetization   =   5.58 Bohr mag/cell</div><div><br></div><div>   iteration #525   ecut=   50.39 Ry   beta=0.16</div><div>   Davidson diagonalization with overlap</div><div><br></div></div></div><div><br></div></div></div></div>